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The ftpusers file must be group-owned by root, bin, sys, or system.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22444 GEN004930 SV-37538r1_rule ECLP-1 Medium
Description
If the ftpusers file is not group-owned by root or a system group, an unauthorized user may modify the file to allow unauthorized accounts to use FTP.
STIG Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide 2017-03-01

Details

Check Text ( C-36196r1_chk )
Check the group ownership of the ftpusers file.

Procedure:
# ls -lL /etc/ftpusers /etc/vsftpd.ftpusers /etc/vsftpd/ftpusers

If the file is not group-owned by root, bin, sys, or system, this is a finding.

Fix Text (F-31454r1_fix)
Change the group owner of the ftpusers file.

Procedure:
# chgrp root /etc/ftpusers /etc/vsftpd.ftpusers /etc/vsftpd/ftpusers